Explain why the envelop detector cannot demodulate the over-modulated signal . Discuss how to demodulate the over-modulated signal.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Q: Explain why the envelop detector cannot demodulate the over-modulated signal . Discuss how to demodulate the over-modulated signal.

DSP
Constant
Modulating Signal
m(t)
Pulse
Generato
10 kHz 10% duty cycle pulser
Add
Ground
H>0
Switch
FDATool
Scope
Spectrum
Analyzer
fcn
MATLAB Function
y=(u+abs(u))/2
Half-wave Rectifier
Spectrum
Analyzer 1
Scope1
Lowpass
Lowpass Filter
keep the frequency fm of m(t)
Digital
Filter Design
Bandpass filter
keep [fc-fm, fc+fm]
Figure 5 AM Generation using Pulse Amplitude Modulation
Spectrum
Analyzer 2
Transcribed Image Text:DSP Constant Modulating Signal m(t) Pulse Generato 10 kHz 10% duty cycle pulser Add Ground H>0 Switch FDATool Scope Spectrum Analyzer fcn MATLAB Function y=(u+abs(u))/2 Half-wave Rectifier Spectrum Analyzer 1 Scope1 Lowpass Lowpass Filter keep the frequency fm of m(t) Digital Filter Design Bandpass filter keep [fc-fm, fc+fm] Figure 5 AM Generation using Pulse Amplitude Modulation Spectrum Analyzer 2
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